1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f56b7995052dc8f9553a178faa37011c5b16178ae28af10cf2f87d0f7c7bfc9. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7d6f450-dff5-404a-b260-0dc7fc33a9fd.json and https://artists.proofprofile.net/proofs/artist/c7d6f450-dff5-404a-b260-0dc7fc33a9fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Light of Christmas Eve (feat. Elias Ford)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c644045898b2e779ae1f3161bb2f6e940bcf8e46e6195af7e8bd68bfac21b4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7552aa58c1c68c2bab5e68437818f96d968ce3b04a78e7953e730b3838e27522. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659f0074e75b403cd65c67b882a40e9203891ad615166c512204f440fd081dc9. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38004d42629f2c57ac8eb6107f352a5668781b62f94f86b8cba1467eeaa92e90. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8211c39588961102df9410708701d41bd6b1b9ac0adcda31fa09c5016c944e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262906eb252a57e1038dc4c847345920f5e75d5d4518bafb9e5b1cce63c8a4e1. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f512aab4b6498bd311af3048789b4158cd20496a754c585ffa6676c576f55. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921171ad0713a2d7088ea61bc54bdcf791e5cf5fd70c67f855a607562e6a333b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:59:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebc450171ffe7053d459d3e57fceb8e5716ebe8bb4cdb1afc315d10173d6ee3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2510929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c162e0f31319836bae524cc81f2308ddb17e9e3b56b46e3676fa457bc30c893. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d10e82b10baf48c7efb7a8266427f6cec29b0959b5a921a05e2d733280523d4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b2da5e4f8d1da0749decd2a49209c8cf0b55ae39139e7bc10da2dbf9618480. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2545007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d20af1e372a7cae29a4bb399b4c856ec845093f128d9d5d6d94352bc4b807e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5038f450e3db7a9e3f29cc57512d82083798d97c4d8f05a4268cf68c1b2ea1f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4848641190fca0630974173b785cf0b3c77f0c70d9f92fc92e30e399709bd5. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:22:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e16f43c6b899d04350614c3bcff9eed3f523fdb1682bd523f8d55a3a916b320. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e0366594666dcbf680533dc858a27f8943626a1025098d8c3ffa5ef23d729f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708950ce95d3c64a46ef9a039d660d7a730fe6d4f5e5f558ecf155673fed70e3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50c228f1665cbd588a509b2de38a883547de0906b09225e12df07773d98b176. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2440e4f537e00acb15b16790cf66d8c60c25d7b3adc44e8d2a8b258b8aa21932. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf61236d51f9ac444f5b883da21dbfe26abdc532d0369753807a9c70326ebfae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2577471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab548e74764442b5605e86be7b37469222b996fc4b9dc8d8808c0ab5593de84. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2548257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aed0f9c3f788175316c674ff884aa44e49264ebeb079a06485a3b1d141588c9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2548268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e285f3535bd43679356280694e4ae1864ac0f843fc3ba28dca6504a94ad105. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:19:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2548326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06826a10b343fa258c7680387bcddc3c65f8fddcc18875e716938d2706c0c703. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2548340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb804491d3d4f406115e49ad690dc91572d516c405d3471113bc3bf2773e2cba. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2548368.